package com.itheima.reggie.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.itheima.reggie.common.R;
import com.itheima.reggie.pojo.User;
import com.itheima.reggie.service.UserService;
import com.itheima.reggie.utlis.ValidateCodeUtils;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;
import java.util.Map;
import java.util.concurrent.TimeUnit;

/**
 * @title: UserController
 * @Author 椎名真白
 * @Date: 2022-05-02 8:35
 * @Version 1.0
 */

@RestController
@RequestMapping("/user")
@Slf4j
public class UserController {
    @Autowired
    private UserService userService;
    @Autowired
    private RedisTemplate redisTemplate;

    @PostMapping("/sendMsg")
    public R<String> sendMsg(@RequestBody User user, HttpSession session){
        //获取手机号
        String phone = user.getPhone();
        if(StringUtils.isNotEmpty(phone)){
            //生成随机的4位验证码
            String code = ValidateCodeUtils.generateValidateCode(4).toString();
            log.info("code={}",code);

            //调用阿里云提供的短信服务API完成发送短信
            //SMSUtils.sendMessage("瑞吉外卖","",phone,code);

            //需要将生成的验证码保存到Session
            //session.setAttribute(phone,code);
            //将生成的验证码存入redis中 过期时间为五分钟
            redisTemplate.opsForValue().set("code_"+phone,code,5, TimeUnit.MINUTES);
            return R.success("手机验证码短信发送成功");
        }
        return R.error("短信发送失败");
    }

    @PostMapping("/login")
    public R<User> login(@RequestBody Map<String ,String> map, HttpSession session){
        log.info(map.toString());
        //获取手机号
        String phone = map.get("phone");
        //获取验证码
        String code = map.get("code");
        log.info("code={}",code);
        //从Session中获取保存的验证码
        //Object codeInSession = session.getAttribute(phone);

        //从redis中获取验证码
        Object codeInRedid = redisTemplate.opsForValue().get("code_"+phone);
        //进行验证码的比对（页面提交的验证码和Session中保存的验证码比对）
        if(codeInRedid != null && codeInRedid.equals(code)){
            //如果能够比对成功，说明登录成功
            //登录成功，中redis中删除缓存的验证码
            redisTemplate.delete("code_"+phone);
            LambdaQueryWrapper<User> queryWrapper = new LambdaQueryWrapper<>();
            queryWrapper.eq(User::getPhone,phone);
            User user = userService.getOne(queryWrapper);
            if(user == null){
                //判断当前手机号对应的用户是否为新用户，如果是新用户就自动完成注册
                user = new User();
                user.setPhone(phone);
                user.setStatus(1);
                userService.save(user);
            }
            session.setAttribute("user",user.getId());
            return R.success(user);
        }
        return R.error("登录失败");
    }

    @PostMapping("loginout")
    public R<String> logout(HttpServletRequest request){
        request.getSession().invalidate();
        return R.success("退出成功");
    }
}